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ASTM Grade HK Steel vs. SAE-AISI H11 Steel

Both ASTM grade HK steel and SAE-AISI H11 steel are iron alloys. They have 59% of their average alloy composition in common. There are 24 material properties with values for both materials. Properties with values for just one material (8, in this case) are not shown.

For each property being compared, the top bar is ASTM grade HK steel and the bottom bar is SAE-AISI H11 steel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 200
190
Poisson's Ratio 0.27
0.29
Shear Modulus, GPa 79
74
Tensile Strength: Ultimate (UTS), MPa 500
690 to 1840

Thermal Properties

Latent Heat of Fusion, J/g 310
270
Melting Completion (Liquidus), °C 1400
1460
Melting Onset (Solidus), °C 1350
1410
Specific Heat Capacity, J/kg-K 480
470
Thermal Conductivity, W/m-K 15
42
Thermal Expansion, µm/m-K 17
12

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 2.0
8.2
Electrical Conductivity: Equal Weight (Specific), % IACS 2.3
9.5

Otherwise Unclassified Properties

Base Metal Price, % relative 25
5.5
Density, g/cm3 7.8
7.8
Embodied Carbon, kg CO2/kg material 4.4
3.0
Embodied Energy, MJ/kg 63
43
Embodied Water, L/kg 200
75

Common Calculations

PREN (Pitting Resistance) 27
9.6
Stiffness to Weight: Axial, points 14
14
Stiffness to Weight: Bending, points 25
25
Strength to Weight: Axial, points 18
25 to 66
Strength to Weight: Bending, points 18
22 to 43
Thermal Diffusivity, mm2/s 3.9
11
Thermal Shock Resistance, points 11
22 to 58

Alloy Composition

Carbon (C), % 0.2 to 0.6
0.33 to 0.43
Chromium (Cr), % 24 to 28
4.8 to 5.5
Copper (Cu), % 0
0 to 0.25
Iron (Fe), % 44.8 to 57.8
89.6 to 92.5
Manganese (Mn), % 0 to 2.0
0.2 to 0.5
Molybdenum (Mo), % 0 to 0.5
1.1 to 1.6
Nickel (Ni), % 18 to 22
0 to 0.3
Phosphorus (P), % 0 to 0.040
0 to 0.030
Silicon (Si), % 0 to 2.0
0.8 to 1.2
Sulfur (S), % 0 to 0.040
0 to 0.030
Vanadium (V), % 0
0.3 to 0.6